Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:13:10

Orbital Elements for R207AB
WDS: R207AB WDS ID/Discoverer
P: 188.000 Orbital period (years)
a: 1.16 Semi-major axis (arcseconds)
i: 53.3 Inclination (degrees)
Ω: 138.6 Longitude of ascending node (degrees)
T: 1874.200 Epoch of periastron passage (year)
e: 0.79 Eccentricity
ω: 72.5 Longitude of periastron (degrees)
Start-Year: 1931.0 Year
End-Year: 2119.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for R207AB
Position: 124616.87-680629.1 Epoch-2000 right ascension and declination
WDS-ID: 12463-6806 WDS designation
Discoverer Code: R207AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 110879 HD catalog number
Hipparcos number: 62322 Hipparcos catalog number
V1: 3.52 Magnitude of the primary
V2: 3.98 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for R207AB



WDS 6th Orbit including measures of R207AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of R207AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.923     62.0
-------------------------
1931.0     1.358      2.1
1932.0     1.361      2.6
1933.0     1.364      3.1
1934.0     1.367      3.6
1935.0     1.370      4.1
1936.0     1.372      4.6
1937.0     1.374      5.1
1938.0     1.376      5.6
1939.0     1.377      6.1
1940.0     1.379      6.6
1941.0     1.380      7.1
1942.0     1.381      7.6
1943.0     1.382      8.1
1944.0     1.382      8.6
1945.0     1.382      9.1
1946.0     1.382      9.6
1947.0     1.382     10.1
1948.0     1.382     10.6
1949.0     1.382     11.1
1950.0     1.381     11.5
1951.0     1.380     12.0
1952.0     1.379     12.5
1953.0     1.378     13.0
1954.0     1.376     13.5
1955.0     1.375     14.0
1956.0     1.373     14.5
1957.0     1.371     15.0
1958.0     1.369     15.5
1959.0     1.367     16.0
1960.0     1.364     16.5
1961.0     1.362     17.1
1962.0     1.359     17.6
1963.0     1.356     18.1
1964.0     1.353     18.6
1965.0     1.349     19.1
1966.0     1.346     19.6
1967.0     1.343     20.2
1968.0     1.339     20.7
1969.0     1.335     21.2
1970.0     1.331     21.7
1971.0     1.327     22.3
1972.0     1.323     22.8
1973.0     1.318     23.4
1974.0     1.314     23.9
1975.0     1.309     24.4
1976.0     1.304     25.0
1977.0     1.299     25.6
1978.0     1.294     26.1
1979.0     1.289     26.7
1980.0     1.283     27.3
1981.0     1.278     27.8
1982.0     1.272     28.4
1983.0     1.267     29.0
1984.0     1.261     29.6
1985.0     1.255     30.2
1986.0     1.249     30.8
1987.0     1.242     31.4
1988.0     1.236     32.0
1989.0     1.229     32.6
1990.0     1.223     33.3
1991.0     1.216     33.9
1992.0     1.209     34.5
1993.0     1.202     35.2
1994.0     1.195     35.8
1995.0     1.188     36.5
1996.0     1.181     37.2
1997.0     1.173     37.9
1998.0     1.166     38.6
1999.0     1.158     39.3
2000.0     1.150     40.0
2001.0     1.143     40.7
2002.0     1.135     41.4
2003.0     1.127     42.1
2004.0     1.118     42.9
2005.0     1.110     43.7
2006.0     1.102     44.4
2007.0     1.093     45.2
2008.0     1.085     46.0
2009.0     1.076     46.8
2010.0     1.067     47.6
2011.0     1.058     48.5
2012.0     1.049     49.3
2013.0     1.040     50.2
2014.0     1.031     51.1
2015.0     1.022     52.0
2016.0     1.012     52.9
2017.0     1.003     53.8
2018.0     0.993     54.8
2019.0     0.983     55.7
2020.0     0.973     56.7
2021.0     0.963     57.7
2022.0     0.953     58.7
2023.0     0.943     59.8
2024.0     0.933     60.9
2025.0     0.923     62.0
2026.0     0.912     63.1
2027.0     0.901     64.2
2028.0     0.891     65.4
2029.0     0.880     66.6
2030.0     0.869     67.9
2031.0     0.858     69.1
2032.0     0.846     70.4
2033.0     0.835     71.8
2034.0     0.823     73.1
2035.0     0.812     74.5
2036.0     0.800     76.0
2037.0     0.788     77.5
2038.0     0.775     79.0
2039.0     0.763     80.6
2040.0     0.750     82.3
2041.0     0.737     84.0
2042.0     0.723     85.8
2043.0     0.710     87.6
2044.0     0.696     89.5
2045.0     0.681     91.5
2046.0     0.666     93.6
2047.0     0.650     95.8
2048.0     0.634     98.1
2049.0     0.617    100.5
2050.0     0.599    103.0
2051.0     0.579    105.8
2052.0     0.559    108.7
2053.0     0.537    111.8
2054.0     0.512    115.3
2055.0     0.486    119.0
2056.0     0.455    123.3
2057.0     0.421    128.2
2058.0     0.381    134.1
2059.0     0.335    141.4
2060.0     0.280    151.5
2061.0     0.219    166.8
2062.0     0.164    193.5
2063.0     0.150    234.2
2064.0     0.193    268.2
2065.0     0.260    287.1
2066.0     0.330    298.1
2067.0     0.395    305.4
2068.0     0.455    310.6
2069.0     0.511    314.7
2070.0     0.561    317.9
2071.0     0.608    320.7
2072.0     0.651    323.1
2073.0     0.691    325.2
2074.0     0.728    327.1
2075.0     0.763    328.8
2076.0     0.796    330.3
2077.0     0.827    331.8
2078.0     0.856    333.1
2079.0     0.883    334.3
2080.0     0.909    335.5
2081.0     0.934    336.6
2082.0     0.958    337.7
2083.0     0.980    338.7
2084.0     1.001    339.6
2085.0     1.021    340.6
2086.0     1.041    341.5
2087.0     1.059    342.3
2088.0     1.077    343.1
2089.0     1.093    343.9
2090.0     1.109    344.7
2091.0     1.125    345.5
2092.0     1.139    346.2
2093.0     1.153    346.9
2094.0     1.167    347.6
2095.0     1.180    348.3
2096.0     1.192    349.0
2097.0     1.204    349.6
2098.0     1.215    350.3
2099.0     1.225    350.9
2100.0     1.236    351.6
2101.0     1.246    352.2
2102.0     1.255    352.8
2103.0     1.264    353.4
2104.0     1.272    354.0
2105.0     1.280    354.5
2106.0     1.288    355.1
2107.0     1.295    355.7
2108.0     1.302    356.2
2109.0     1.309    356.8
2110.0     1.315    357.3
2111.0     1.321    357.9
2112.0     1.327    358.4
2113.0     1.332    358.9
2114.0     1.337    359.5
2115.0     1.342      0.0
2116.0     1.346      0.5
2117.0     1.351      1.0
2118.0     1.354      1.6






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


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